Cooling cabinet for ice cream and similar substances



COOLING CABINET FOR ICE QREAM AND SIMILAR SUBSTANCES Filedbecgsa, 192e 2sheets-sheet f1 April 15,' i930. P. l.. BILHAM ET AL v L75547 OOLINGCABINET FOR ICE CREAM ANDS-IMILAR SUBSTANCES Filed Deo.9, 1926 2Sheets-Sheet 2 APatented Apr. 15,;y

1 UNITED lslArizfs PATENT loFFICl-f PHILIP LEO BILiaAM, or BAL'HAM,LONDON, AND A JAMES AssIGNons To I. LYoNsAND COMPANY, LIM;

n AnoNsv courrir,v LONDON,` ENGLAND, ITED, or LONDON, ENGLAND WOODROWSMITH, on

COOLINGVGABINDT ron Ion oItEA'lvr AND sIivIILAa` sUns'rANcEs Applicationmed December 9, 1926, Serial No. 153,686, and'in Great Britain January22, 192.

This invention relates to cabinets or. other containers for ice cream orother substances lof which it is desired to lower or maintain theorignal temperature for considerable periods,v fA the cabinets or othercontainers being more particularly off the kind -transportablel bymeans'of a tri'cycle, or other vehicle or manL ually. X .N

L The present invention comprises airy` ice cream or similar cabinethaving Walls Qr' a jacketof heat insulating material and adapted toreceive articles or' substances or vessels containing' the same,lcharacterized bythe provision'in such cabinets between its insulatingjacket or wallsandthe contained articles onk substances, of one or moreremovable refrig` erators in the form of a hollow liner made of one or'more' units each refrigerator con-l taining a-charge of refrigeratingsubstance- 'or eutectic mixture the characteristic of vtheeutecticbeingthat it'vvill maintain Llie contents a't the melting point of theeutectic until all such eutectic isamelted which refrig- .eratingsubstance or'eutvectic mixture may be renewed and recharged when-requ'ired\ after the unit containing the same is removed from thecabinet, or each removed unit may be replaced by a previously chargedone.

A manner of carrying out the invention is illustrated by theaccompanying drawings,r wherein Figure 1 is a sectional elevation of acabinetl made in accordance with-the present invention, Figure 2 is aplan thereof the lovverhalf of this plan being shown withthe coverremoved7 Figure-3 is aside elevation half of which is insectionf'Figurel VLfis an elevation of a screen, Figure 5 is a plan viewof a refrigerator case showing the applica-` tion'of our screen, lFigure6 is asectional "l0 view and Figure 71a plan of an insulated cover-*forthe openings in the lid or cover of thecabinet. l

In these drawings thecabinet is constructed as a rectangularv e isWalls/2 are 'made of wood, .the cover' of 4'the f At the bottom box ofwhich they outer? box is built upon a Wooden frame-B hingedv at 4 to thebaclrvvall of the cabinet, both the.

cover,A and the Walls of the box have a thick insulating lining 5 ofcork or other suitable heat insulating niaterial which is covered on.the inside with zinc or other suitable sheetingG.

liner units consist offlat yrectangula'r'boxes In the present.l examplethe refrigerator I 7 containing` a refrigerating substance or 'e'utecticmixture., These units fit inv pockets or loops 24 fixed to the zincsheeting 6, and are removable thercfromby handles 30 pro-vided in thetopsv of the units. In the tops of 'each unit is also provided a. sealedopening/31 which may be'of the kind consisting .of avv`v melting theSolder.

yfzlllie cover ofthe cabinet is provided with, conical openings 8, 9 and10 extending through the insulating material 5 and lined withsheet metal18. These openings are for the purpose of enabling the articles to' bewithdrawn without lifting the Whole of the` inside surface ofthfcabinetwill be continuous. f

.of the inside of the cabinet is provided a raised platform or stand 13of perforated metal sli/eet on which the articles Or-vessels co tiningthem are supported; The insidf ,fl/the cabinet is divided intosectionsby/thin partitions 14 and 15 the openings 8', 9 and 10i/in thehinged cover being arranged irnmediately above each section. l'

Onthe outside of the top ofthe cabinet is provided a screen 16consisting of two tri angular end sheets 16 of suitablematerialconnected' together ithl by'a tie rod 21 and sehole covered by a discsealed thereon byy solder, the disc being readily removable b ,f

12. These conical covers are of such a depth that when 1n position intheir openingithe cured by brackets 20 to a base 32 adapted to fit othetop of the cover of the cabindt. At the bottom of the cabinet isprovided an outlet 17 for draining purposes.

` The cabinet may be secured to the frame of a tricycleor other Suitablevehicle in any suitable manner such as by screws 22'.

The hinged cover is provided with links 25 of the kind which when openedout form a strut for holding the cover in the open po stion whenrequired.

The freezing 'mixture is preferably of the kind known as an eutecticmixture and nonpoisonous and innocuous and having a melting point whichfor use in ice cream Cabinets should be about O F.

A cabinet made in accordance with the present invention is safe'andsanitary, and

in an example constructed for use on a tricycle, a temperature of belowI?. has beenv -maintained for a period of 12 hours.

In using the apparatus the refrigerator units 7 are cooled before beingplaced in p0` v sition in the cabinet;

What we claim and vdesire to secure by Leti vhaving walls ofheat'nsulating material and ters Patent is 1. A transportablevrefrigerating cabinet adapted to receive articles, comprising incombinationan insulated top continuous with the walls ofinsulatingmaterial and provided with openings having insulated removablecovers, a plurality of removable narrow receptacles containingrefrigerating substance. o r eutectic mixture', means for holding themagainst all the vertical 'walls of the cabinet and means for screeningthe cabinet -while the covers are removed from the openings.

2. A transportable cabinet having upper and lower and side walls of heatinsulating material and adapted to receive articles, comprisingincombination a plurality of removable narrow receptacles eachcontaining a perforated platform secured inside the cabinet to the basethereof for the reception of the articles, the partition extendingacross the inside of the cabinet between the refrigerators on oppositesides and b eing secured at its base only to the platform, and means forscreening the cabinet while the covers are re moved.

In witness whereof we aix our signatures.

PHILIP LEO BILI-IAM. J AMES WOODROW SMITH.

charge of refrigeratin substance or eutectic mixture, openings in.t etop wall of the receptacle provided with removable covers of the samematerial` means for screening the cabinet from hot air while thearticles are being-extracted or inserted, and means for holding therefrigerant containing receptacles against all the vertical walls ofheat insulating material so as to form a vertical lining for thecabinet.

adapted to receive articles, i com ceptacles to form an inner lining toall the vertical walls of the cabinet, and a 'raised

